- Manufacturers
- 3com
- Aastra
- Aculab
- ADC
- Adtran
- Afc
- Agilent
- Alcatel
- Argus
- AudioCodes
- Avaya
- Brocade
- Brooktrout
- Calix
- Cantata
- Carrier Access
- Ciena
- Cisco
- Datamax
- Dell
- Dialogic
- Ericsson
- ESI
- Excel
- F5
- Force10 Networks
- Foundry
- Fujitsu
- Hewlett-Packard HP
- Huawei
- IBM
- Intel
- Intermec
- Juniper
- Lorain
- Lucent
- Marconi
- Motorola
- NCR
- NMS
- Nokia
- Nortel
- OCCAM
- Overture
- Pairgain
- Paradyne
- Peco II
- Plantronics
- Polycom
- Powerwave
- Proxim
- Quintum
- Redback
- SANGOMA
- Siemens
- Sun
- Symbol
- Tekelec
- Tektronix
- Telco
- Telect
- Tellabs
- Westell
- Zhone Technologies, Inc
